21423614330 has 16 divisors (see below), whose sum is σ = 38564657064. Its totient is φ = 8568967680.

The previous prime is 21423614297. The next prime is 21423614347. The reversal of 21423614330 is 3341632412.

It can be written as a sum of positive squares in 4 ways, for example, as 13670987929 + 7752626401 = 116923^2 + 88049^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21423614293 and 21423614302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170834 + ... + 268386.

Almost surely, 2^21423614330 is an apocalyptic number.

21423614330 is a deficient number, since it is larger than the sum of its proper divisors (17141042734).

21423614330 is a wasteful number, since it uses less digits than its factorization.

21423614330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119521.

The product of its (nonzero) digits is 10368, while the sum is 29.

The spelling of 21423614330 in words is "twenty-one billion, four hundred twenty-three million, six hundred fourteen thousand, three hundred thirty".